40519161 has 12 divisors (see below), whose sum is σ = 59330388. Its totient is φ = 26642304.

The previous prime is 40519159. The next prime is 40519163. The reversal of 40519161 is 16191504.

It is an interprime number because it is at equal distance from previous prime (40519159) and next prime (40519163).

It can be written as a sum of positive squares in 2 ways, for example, as 34047225 + 6471936 = 5835^2 + 2544^2 .

It is not a de Polignac number, because 40519161 - 2¹ = 40519159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40519163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30180 + ... + 31493.

It is an arithmetic number, because the mean of its divisors is an integer number (4944199).

Almost surely, 2^40519161 is an apocalyptic number.

It is an amenable number.

40519161 is a deficient number, since it is larger than the sum of its proper divisors (18811227).

40519161 is a wasteful number, since it uses less digits than its factorization.

40519161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61752 (or 61749 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 40519161 is about 6365.4662829992. The cubic root of 40519161 is about 343.4684219301.

The spelling of 40519161 in words is "forty million, five hundred nineteen thousand, one hundred sixty-one".